Constitutional FAQ Answer #97

A. There are 100 Senators and 435 Representatives, so there are 535 members
of Congress. The House has several non-voting members that are not included in
the count (see the Members of Congress Page for a
list of the current Congress). The number of representatives kept rising until
a law was passed in 1911, locking the number of representatives to the number
current at that time. That number was 435.